void
osip_uri_param_freelist (osip_list_t * params)
{
osip_uri_param_t *u_param;
while (!osip_list_eol (params, 0))
{
u_param = (osip_uri_param_t *) osip_list_get (params, 0);
osip_list_remove (params, 0);
osip_uri_param_free (u_param);
}
}
int
osip_uri_param_add (osip_list_t * url_params, char *pname, char *pvalue)
{
int i;
osip_uri_param_t *url_param;
i = osip_uri_param_init (&url_param);
if (i != 0)
return -1;
i = osip_uri_param_set (url_param, pname, pvalue);
if (i != 0)
{
osip_uri_param_free (url_param);
return -1;
}
osip_list_add (url_params, url_param, -1);
return 0;
}
/*
method is the type of request. ("INVITE", "REGISTER"...)
to is the remote target URI
transport is either "TCP" or "UDP" (by now, only UDP is implemented!)
*/
int
generating_request_out_of_dialog (osip_message_t ** dest, const char *method,
const char *to, const char *transport,
const char *from, const char *proxy)
{
/* Section 8.1:
A valid request contains at a minimum "To, From, Call-iD, Cseq,
Max-Forwards and Via
*/
int i;
osip_message_t *request;
char locip[65];
int doing_register;
char *register_callid_number = NULL;
*dest = NULL;
if (eXosip.eXtl == NULL)
return OSIP_NO_NETWORK;
/*guess the local ip since req uri is known */
memset (locip, '\0', sizeof (locip));
eXosip_guess_ip_for_via (eXosip.eXtl->proto_family, locip, 49);
if (locip[0] == '\0')
{
OSIP_TRACE (osip_trace
(__FILE__, __LINE__, OSIP_ERROR, NULL,
"eXosip: no default interface defined\n"));
return OSIP_NO_NETWORK;
}
i = osip_message_init (&request);
if (i != 0)
return i;
/* prepare the request-line */
osip_message_set_method (request, osip_strdup (method));
osip_message_set_version (request, osip_strdup ("SIP/2.0"));
osip_message_set_status_code (request, 0);
osip_message_set_reason_phrase (request, NULL);
doing_register = 0 == strcmp ("REGISTER", method);
if (doing_register)
{
osip_uri_init (&(request->req_uri));
i = osip_uri_parse (request->req_uri, proxy);
if (i != 0)
{
osip_message_free (request);
return i;
}
i = osip_message_set_to (request, from);
if (i != 0 || request->to == NULL)
{
if (i >= 0)
i = OSIP_SYNTAXERROR;
osip_message_free (request);
return i;
}
} else
{
/* in any cases except REGISTER: */
i = osip_message_set_to (request, to);
if (i != 0 || request->to == NULL)
{
if (i >= 0)
i = OSIP_SYNTAXERROR;
OSIP_TRACE (osip_trace
(__FILE__, __LINE__, OSIP_ERROR, NULL,
"ERROR: callee address does not seems to be a sipurl: %s\n",
to));
osip_message_free (request);
return i;
}
/* REMOVE ALL URL PARAMETERS from to->url headers and add them as headers */
if (request->to != NULL && request->to->url != NULL)
{
osip_uri_t *url = request->to->url;
while (osip_list_size (&url->url_headers) > 0)
{
osip_uri_header_t *u_header;
u_header = (osip_uri_param_t *) osip_list_get (&url->url_headers, 0);
if (u_header == NULL)
break;
if (osip_strcasecmp (u_header->gname, "from") == 0)
{
} else if (osip_strcasecmp (u_header->gname, "to") == 0)
{
} else if (osip_strcasecmp (u_header->gname, "call-id") == 0)
{
} else if (osip_strcasecmp (u_header->gname, "cseq") == 0)
{
} else if (osip_strcasecmp (u_header->gname, "via") == 0)
{
} else if (osip_strcasecmp (u_header->gname, "contact") == 0)
{
} else
osip_message_set_header (request, u_header->gname,
u_header->gvalue);
osip_list_remove (&url->url_headers, 0);
osip_uri_param_free (u_header);
}
}
if (proxy != NULL && proxy[0] != 0)
{ /* equal to a pre-existing route set */
/* if the pre-existing route set contains a "lr" (compliance
with bis-08) then the req_uri should contains the remote target
URI */
osip_uri_param_t *lr_param;
osip_route_t *o_proxy;
osip_route_init (&o_proxy);
i = osip_route_parse (o_proxy, proxy);
if (i != 0)
{
osip_route_free (o_proxy);
osip_message_free (request);
return i;
}
osip_uri_uparam_get_byname (o_proxy->url, "lr", &lr_param);
if (lr_param != NULL) /* to is the remote target URI in this case! */
{
osip_uri_clone (request->to->url, &(request->req_uri));
/* "[request] MUST includes a Route header field containing
the route set values in order." */
osip_list_add (&request->routes, o_proxy, 0);
} else
/* if the first URI of route set does not contain "lr", the req_uri
is set to the first uri of route set */
{
request->req_uri = o_proxy->url;
o_proxy->url = NULL;
osip_route_free (o_proxy);
/* add the route set */
/* "The UAC MUST add a route header field containing
the remainder of the route set values in order.
The UAC MUST then place the remote target URI into
the route header field as the last value
*/
osip_message_set_route (request, to);
}
} else /* No route set (outbound proxy) is used */
{
/* The UAC must put the remote target URI (to field) in the req_uri */
i = osip_uri_clone (request->to->url, &(request->req_uri));
if (i != 0)
{
osip_message_free (request);
return i;
}
}
}
/* set To and From */
i = osip_message_set_from (request, from);
if (i != 0 || request->from == NULL)
{
if (i >= 0)
i = OSIP_SYNTAXERROR;
osip_message_free (request);
return i;
}
/* add a tag */
osip_from_set_tag (request->from, osip_from_tag_new_random ());
/* set the cseq and call_id header */
{
osip_call_id_t *callid;
osip_cseq_t *cseq;
char *num;
char *cidrand;
/* call-id is always the same for REGISTRATIONS */
i = osip_call_id_init (&callid);
if (i != 0)
{
osip_message_free (request);
return i;
}
cidrand = osip_call_id_new_random ();
osip_call_id_set_number (callid, cidrand);
if (doing_register)
register_callid_number = cidrand;
request->call_id = callid;
i = osip_cseq_init (&cseq);
if (i != 0)
{
osip_message_free (request);
return i;
}
num = osip_strdup (doing_register ? "1" : "20");
osip_cseq_set_number (cseq, num);
osip_cseq_set_method (cseq, osip_strdup (method));
request->cseq = cseq;
if (cseq->method == NULL || cseq->number == NULL)
{
osip_message_free (request);
return OSIP_NOMEM;
}
}
i = _eXosip_request_add_via (request, transport, locip);
if (i != 0)
{
osip_message_free (request);
return i;
}
/* always add the Max-Forward header */
osip_message_set_max_forwards (request, "70"); /* a UA should start a request with 70 */
if (0 == strcmp ("REGISTER", method))
{
} else if (0 == strcmp ("INFO", method))
{
} else if (0 == strcmp ("OPTIONS", method))
{
osip_message_set_accept (request, "application/sdp");
}
osip_message_set_user_agent (request, eXosip.user_agent);
/* else if ... */
*dest = request;
return OSIP_SUCCESS;
}
